SteaScree

It is normally not possible to upload any screenshots to the Steam Cloud if they weren’t taken using the Steam overlay, as you will be presented with the “Steam Cloud may be temporarily unavailable” error whenever you attempt it.

SteaScree is an easy-to-use application that not only allows you to upload any snapshot to the Steam Cloud, but makes the process remarkably straightforward. It can even convert images to the right format and resize them if necessary.

In order for Steam to allow you to upload a screenshot, it needs to have a specific filename, be stored in a certain directory and be registered in the screenshots.vdf file. Performing all these steps yourself is, of course, a tedious task.

Thankfully, SteaScree takes care of everything and only requires you to follow a couple of simple steps. It even supports multiple user accounts, which is great for those who share a computer.

Once you have launched the app, you need to select the game ID and, if more than one is available, your user ID. Every game in your library will be listed, even those that are not currently installed on your PC.

You can load screenshots with drag and drop, and then just have the application copy them to the game directory. PNG, BMP and TIFF files are automatically converted to JPEG.

It is possible to import snapshots for multiple games and then prepare all of them for uploading. However, keep in mind that you need to quit Steam before finalizing the process.

When all the above steps have been completed, you can upload the images from Steam without encountering any errors. Since the application does a good job of handling creation dates, the screenshots should always be in the right order.

If, for various reasons, you prefer not to take screenshots with the Steam overlay but still want to upload them to the Steam Cloud, SteaScree is exactly what you need. It is very user-friendly, and it can help you prepare screenshots for multiple games easily.